@article{MZ_1974__136_172051,
     author = {Walter Schempp and Ulrich Tippenhauer},
     title = {Reprokerne zu {Spline-Grundr\"aumen.}},
     journal = {Mathematische Zeitschrift},
     pages = {357--369},
     publisher = {mathdoc},
     volume = {136},
     year = {1974},
     zbl = {0268.41005},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__136_172051/}
}